The type of photography that you are planning to use is an important decision factor. Here we have evaluated the Samyang 20mm F1.8 and the Samsung 20mm F2.8 Pancake for their suitability to various photography scenarios:
Size and Weight Comparison
Size of a lens is an important deciding factor when comparing two lenses.Samyang 20mm F1.8 is the longer of the two lenses at 88mm. The Samsung 20mm F2.8 Pancake with a length of 25mm is 63mm shorter. Besides being longer, the Samyang 20mm F1.8 also has a larger diameter of 83mm compared to Samsung 20mm F2.8 Pancake's 62mm diameter.
Weight of a lens is as important as its external dimensions, especially if you are planning to hand hold your camera and lens combination for longer periods. Samsung 20mm F2.8 Pancake weighs 89g, 82% (408g) lighter than the Samyang 20mm F1.8's weight of 497g.
Below you can find the dimension and weight table of the 'Wideangle Prime Lenses in Samsung NX Mount for size comparison purposes.
Wideangle Prime Lenses in Samsung NX Mount for Size Comparison
Both Samyang 20mm F1.8 and Samsung 20mm F2.8 Pancake has the same Samsung NX lens mount. Some of the latest released cameras that are compatible with the Samsung NX lenses are Samsung NX500, Samsung NX1 and Samsung NX3000.
Samyang 20mm F1.8 is also available in Canon EF , Canon EF-M, Fujifilm X, Micro Four Thirds, Nikon F (FX), Pentax KAF, Sony Alpha and Sony E mounts.